Geared locomotive



W. E. BOUSCHOR.

GEARED LOCOMOTIVE'.

APPLICATION FILED APH.25. |922.

1,435,374. PatentedN0v.14,`1922.

3 SHEETS-SHEET 2.

Patented Nov; lei, QZZL WILLIAM n. nonscrion, or' smic."'rnfn.jWesnrnorou.`

@nasen Looor/io'rivn.

Application filed April 25,

provements in Geared Locomotives, of

which the following is a specification.

My invention relates to gear driven locomotives. It consists'of a type of construction which isespecially. adapted for operating upon rough anduneven tracks and also upon tracks havinga'v high degree of curvature. l i

The object of my invention is lto provide a locomotive geared so' that high tractive pull may be obtained .with a relatively small engine, and one capable of operating upon industrial tracks which frequently contain curves of very short radius and also -frequently have tracks which are very rough and uneven; e

My invention consists of certain combinations of parts which will be hereinafter described andI then pointed out in the claims. The accompanying drawings show my invention embodied in Jthe form of construction I now prefer.

Figure lis a longitudinal sectional elevation through a truck equipped in accordance with my invention.v y

Figure 2 is a plan view of the jsame showing, however, the gear housing in section anda portion of the gears on-the axles,

Valso in section.

Figure 3 is a section through one of the, gears which is provided with a luniversal coupling with its axle, the section being taken on an axial plane. f y e Figure l is a section of a similar gear and its universal coupling, taken in aplane perpendicular to the axis of the axle. 1

The usual type of construction. for geared locomotives employs a shaft extending lengthwise ,of the locomotive and having driving connection with the axles through bevel gears. I One of the objects sought'to be secured by my invention is to provide a spur gear train which may bel used to directly connect the axles `of a truck and to connect these with a transversely extending shaft of` the engine; Another object is to provide'a .construction ofthe above type in which the engine is mounted directly uponr the truck frame and at the side thereof` where it is accessible for taking care-there- 1922. serial No. 556,374.

-Inanner in which my inventionJ is preferably constructed, the construction ofthe parts being, however,` simplified in every way possible'4 without really interfering with the operation ofthe device,`l Y

Referring to Figure 1 this Shows a frame l which kmay be of any suitable yconstruction, and two axles f2. These axles are provided with wheels as 2O of any usuall orV truck of. The accompanyingd'rawings show the suitable type of 'construction designed for i operating upon rails. The'laxlesmay be journaled in the truck frame in any suitable way.` It iscontemplated-that these be carried inthegtruck -framein such manner las to permitlimited 'verticalmovement ofthe axles Awith relation -to "the frame. This method contemplates the use 'of springs l() uponV which the truck frame is "supported from the axles. e' y a Two engines, 3, are shown mounted one at each 'side of the truck rame'andwithout the wheels. These engines are mounted hori- Zontally andare connected, as by 'connect- :soA

ing rods 30 and crank vdisks.8l, to operate e a transversely extending shaft 4. This shaft is journaled on' the truck frat-ne.` AIt is ypreferred that 'this shaft be' given a ysupporting bearing as near as 'isfeasible tothe pinion ofthe gear train which is connected therer with. This, in the design shown, mayQbe yaccomplished by supporting the bearing from the member i0. which is a part of or secured'to the truck frame.

To connectlthe axles. 2 andthe engine .shaft i a spur gear tra-1n isv provided.` lThis geartrain comprises a pinion or gear secured, one to each axle v`andengine lshaft and' idler `gears connecting the adjacent gears of those which are mounted upon "said l'shaft and axles.`v The engine shaft dhas a pinion mounted thereon;` This'meshes with an yidler pinion 5() which in turnmeshes with the gear Qllkcarried by the iirsy axle 2,

This gear '21 meshes with an idlerl pinion f 22 and this in turn with a gearf23 carried the other axle 2. `The gear` train above vdescribed is enclosed within a' housing 'l which is composed oftwo sections 6 and 60. This housing is preferably of such a character as'to entirelyfenclose the gear'train and 'protect it from dirt.y Tt isalso desirable that it 'be of atype of construction which will receive and hold grease or 'oilsothat the gears will be lubricated.

' The pinions and 50` may' or maynotbe 1,435 eve ixedly secured upon their respectivev shafts. The idler pinion 50 is mounted upon a stub shaft 5l which is carried by the section 60 oi' the housing. rl`he other idler pinion 22 is mounted upon a stub shaft 24% which in turn is carried by the section 6 ot the housing. rlhe two gears 2l. and 23 which are mounted upon the truck axles, are secured thereto by means oi a universal joint or coupling. A. preferredl type of construction for the same is shown in Figures 8 and This is as follows.

lecured to the shaft a ball shaped member 7. rl"nis has enter surfaces which are sections of a spheroid, rhe gear 2l a i hub which is given compleniental` spheroidal innersurface adapted nt the spheroidal surfaces oi the blockl 7. To assemble Ythese parts in place the member Z is provided with a removablering which may be secured thereon in any suitable way. lt has been shown as screwing in place. This central hub or member 7 is provided with a groove extending about the same and adapted to receive a ring 71- which forms a part oi the universal coupling. This ring is provided with radially positioned pins 72 and 78 which engage respectively with the hub 7 which is secured to the shaft and with the gear These are: positioned 900 apart so as tov forni a gimbaljoint; 'The gear 2l is providedA witha removable hub section E25 so that itmay be putinplace over the spheroidal hub 7.

The gear 23V which secured to the other axle 2 isjoif the saine or an equivalent type of construction. The purpose ot the universal oint in mountingvtnese gearsis to insure that allv the gears of the gear train shallmaintain parallelism of their axes. Ti the drivingf `gear 5 is iixedly securedto its shaft, the gear 2l mountedl upon the axle 2, if lixedly secured to said axle, would cause ay crainping` eiiect in the ,qeartrain whenever the wheel at; one side of the truck droppedv lower than the wheel on the other side. This gives a slight swingingmovement of the axle in a vertical plane extending` lengthwise ot the axle i -With gear train in which the fit with reasonable snugness anc. in which one geancfthetr 'n inovahlei lative o the other in the. ener described, such move! ment would causeV cramping in the. train. VFor'this'reason the entire train is iixed in its position with relation to movements oit the chfuacterv described through its connection with one only ot the shafts there-ot. connecting' the other gears with their shafts in the universal manner described, such `gears may have a. slight movement relative to their axle without interfering seriously with the acticnfbetween the gears oi the train.

To .compensate for; the up 4and downmovementof.: theV axles asia whole, duetto variations in loading, l provide a hinged connection between the two sections 6 and 60 of the housing; This has been done by providing the section 60 with iianges 6l which intermesh with soclrets 62 formed upon the other housing` section. rlhe gear 2l is provided with a hub 26 which is journaled in the flange 3l oi the housing section 60. The gear 23 is similarly journaled in the housing section 6. By this type of construction there can a limited swinging or hinging action about the axis of the shaft 2 which is next to the engine shaft. This will compensate for any vertical variation between the levels of this shaft and the axle.

@ne end ofthe housing' section 60;v enters the adjacent end of the other section 6; At the sides these are designed to fit closelyl so that dirt mayv not enter. At top and4 bottom they are also preferably providedwithdanges as 65 and 66 carried bythe respectiwehous-y ing sections and permitting a slight arcuate telescoping action or swinging about the axis of the shaft 2. lt is? designed that the housing he proviuledy with. grease or oil; of suitable character so that the gear train will run in oil.

jWhat l claim as my invention is:

l. The combination with a bogie truclr having a plurality oi axles and a frame spring supported therefrom, otV an engine shaft journaled on said frame, a gear-train connecting said shaftr and axles, `a housing in which the gears are journaledl and' a uni'- versal coupling between each axle and its gear.

2. rlhe combination with a bogie truck having;` a plurality of axles and a frame spring supported therefrom, ot an engine shaft journaled on said frame, a gear train conracting` said shaft and axles, a twopart housing in which said gears are journaled, one part extending `trom the engine shaft to one axle and the other between the axles, said. housing parts beingrpivoted together to swinzg` about the axis or". their common` axle.

The combination. with a truck trame, axles journaled in saidA trucktor limitedl vertical movement, an engine mounted atl each side upon the truclr frame alongside ofthe wheels, an engine shatt journaled transverse-lyV of and at oneend of the truck frame, and gear train connectingv and the axles,

li. The combination` with a truck frame, axles ournaled insaid'truclr tor limited vertical movement, an engine mounted at each side upon the truck iframe alongside ofi the wheels. an engine shaft journaled transversely of and at one endjoi the truck frame, a gear train connecting the engine sha-ft' and the axles. and a housing enclosingsaid gear train and having two parts hingingvabout the. axis of an axle which is adjacent to the engineshat.y

the engine shaft 5. A. locomotive having a truck frame, aJ plurality of driving axles and Wheels jonrnaled in said truck frame, an engine carried by the truck frame, the engine shaft extend- 5 ing transversely of the truck, a spur gear train connecting said engine sha-ft and the axles and containing an idler gear between each 'of said shaft and axles, whereby the removal of said idler gears permits transpon tation of the locomotive Without operation of its engine or gear train.

Signed at Seattle, King County, Washington, this 20th dey of April 1922. n

v WILLIAM E'. BOUSCHOR. 

